55326121031 has 4 divisors (see below), whose sum is σ = 55331352552. Its totient is φ = 55320889512.

The previous prime is 55326121027. The next prime is 55326121049. The reversal of 55326121031 is 13012162355.

55326121031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55326121031 - 2² = 55326121027 is a prime.

It is a super-2 number, since 2×55326121031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55326120985 and 55326121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55326121931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599865 + ... + 2621058.

It is an arithmetic number, because the mean of its divisors is an integer number (13832838138).

Almost surely, 2^55326121031 is an apocalyptic number.

55326121031 is a deficient number, since it is larger than the sum of its proper divisors (5231521).

55326121031 is a wasteful number, since it uses less digits than its factorization.

55326121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231520.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 55326121031 its reverse (13012162355), we get a palindrome (68338283386).

The spelling of 55326121031 in words is "fifty-five billion, three hundred twenty-six million, one hundred twenty-one thousand, thirty-one".